1 error[E0081]: discriminant value `0` already exists
2 --> $DIR/enum-discrim-autosizing.rs:8:12
6 LL | Bu64 = 0x8000_0000_0000_0000
7 | ^^^^^^^^^^^^^^^^^^^^^ enum already has `0` (overflowed from `9223372036854775808`)
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0081`.